A Harvard Business School study shows that more than raises or promotions, employees want to feel that their input is valuable to the enterprise.

I agree. I also beleive the people starting thier professional life will not necessarily agree and that is normal (in my opinion).

Totally agreed with this study because always we need to know that our effort is considerable, valuable and appreciated

Absoulutely true, but this depends more on the culture of an organization. Most of the organizations here in this part of the world do not relaise the importance of improved and friendly environment and thus ends up by loosing some of the most valuable work force.

In order to cultivate such friendly and self motivated environment the mangement and managers should be trained on this perspective.

Experience is invaluable in any field as one is able to learn from past mistakes thus ensuring newer improved methods and job efficiency.  Unfortunately many companies expect qualifications on paper which does not neccessarily equip one to deal with everyday crises in the work environment.

Job satisfaction and feeling appreciated are great motivations

True - but there is a condition that the employee is already paid enough to feel that is not underpaid as compare to market or other collegues in the company.

It is always good to feel that you are worth your salary